{ cudaVersion, final, hostPlatform, lib, mkVersionedPackageName, package, patchelf, requireFile, ... }: let inherit (lib) maintainers meta strings versions ; in finalAttrs: prevAttrs: { # Useful for inspecting why something went wrong. brokenConditions = let cudaTooOld = strings.versionOlder cudaVersion package.minCudaVersion; cudaTooNew = (package.maxCudaVersion != null) && strings.versionOlder package.maxCudaVersion cudaVersion; cudnnVersionIsSpecified = package.cudnnVersion != null; cudnnVersionSpecified = versions.majorMinor package.cudnnVersion; cudnnVersionProvided = versions.majorMinor finalAttrs.passthru.cudnn.version; cudnnTooOld = cudnnVersionIsSpecified && (strings.versionOlder cudnnVersionProvided cudnnVersionSpecified); cudnnTooNew = cudnnVersionIsSpecified && (strings.versionOlder cudnnVersionSpecified cudnnVersionProvided); in prevAttrs.brokenConditions // { "CUDA version is too old" = cudaTooOld; "CUDA version is too new" = cudaTooNew; "CUDNN version is too old" = cudnnTooOld; "CUDNN version is too new" = cudnnTooNew; }; src = requireFile { name = package.filename; inherit (package) hash; message = '' To use the TensorRT derivation, you must join the NVIDIA Developer Program and download the ${package.version} TAR package for CUDA ${cudaVersion} from ${finalAttrs.meta.homepage}. Once you have downloaded the file, add it to the store with the following command, and try building this derivation again. $ nix-store --add-fixed sha256 ${package.filename} ''; }; # We need to look inside the extracted output to get the files we need. sourceRoot = "TensorRT-${finalAttrs.version}"; buildInputs = prevAttrs.buildInputs ++ [finalAttrs.passthru.cudnn.lib]; preInstall = let targetArch = if hostPlatform.isx86_64 then "x86_64-linux-gnu" else if hostPlatform.isAarch64 then "aarch64-linux-gnu" else throw "Unsupported architecture"; in (prevAttrs.preInstall or "") + '' # Replace symlinks to bin and lib with the actual directories from targets. for dir in bin lib; do rm "$dir" mv "targets/${targetArch}/$dir" "$dir" done ''; # Tell autoPatchelf about runtime dependencies. postFixup = let versionTriple = "${versions.majorMinor finalAttrs.version}.${versions.patch finalAttrs.version}"; in (prevAttrs.postFixup or "") + '' ${meta.getExe' patchelf "patchelf"} --add-needed libnvinfer.so \ "$lib/lib/libnvinfer.so.${versionTriple}" \ "$lib/lib/libnvinfer_plugin.so.${versionTriple}" \ "$lib/lib/libnvinfer_builder_resource.so.${versionTriple}" ''; passthru = { useCudatoolkitRunfile = strings.versionOlder cudaVersion "11.3.999"; # The CUDNN used with TensorRT. # If null, the default cudnn derivation will be used. # If a version is specified, the cudnn derivation with that version will be used, # unless it is not available, in which case the default cudnn derivation will be used. cudnn = let desiredName = mkVersionedPackageName "cudnn" package.cudnnVersion; desiredIsAvailable = final ? desiredName; in if package.cudnnVersion == null || !desiredIsAvailable then final.cudnn else final.${desiredName}; }; meta = prevAttrs.meta // { homepage = "https://developer.nvidia.com/tensorrt"; maintainers = prevAttrs.meta.maintainers ++ [maintainers.aidalgol]; }; }